tgmath.h Incompatible with Clang Precompiled Modules
Originator: | wetzeal | ||
Number: | rdar://15638008 | Date Originated: | 11-Dec-2013 |
Status: | Duplicate/14459641/Open | Resolved: | |
Product: | Developer Tools | Product Version: | |
Classification: | Reproducible: | Always |
Summary: The macros defined in tgmath.h are not accessible when clang modules (-fmodules) are enabled. Steps to Reproduce: 1. Write some code that depends on tgmath.h, e.g. CGFloat height = floor(CGRectGetHeight(self.tableView.frame)) 2. Compile the code with clang modules enabled Expected Results: Build should succeed using tgmath's type generic math macros. Actual Results: Build fails with implicit conversion error, because tgmath's redefinition of floor is not being used. Version: Xcode 5.0.2, iOS 7.0, OS X 10.9 Notes: It looks to me like tgmath.h should be marked excluded in usr/include/module.map like assert.h, instead of as a module, so its macro definitions will correctly clobber the standard library definitions. Configuration: Building for iOS Simulator and iOS Devices.
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